HYBRID ORGANIC SOLAR CELLS BLENDED WITH CNTs

Sudip Adhikari (), Hideo Uchida and Masayoshi Umeno
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Sudip Adhikari: Department of Electronics and Information Engineering, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
Hideo Uchida: Department of Electronics and Information Engineering, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
Masayoshi Umeno: Institute of General Research of Science, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan

Surface Review and Letters (SRL), 2015, vol. 22, issue 06, 1-6

Abstract: In this paper, composite carbon nanotubes (C-CNTs); single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) are synthesized using an ultrasonic nebulizer in a large quartz tube for photovoltaic device fabrication in poly-3-octyl-thiophene (P3OT)/n-Siheterojunction solar cells. We found that the device fabricated with C-CNTs shows much better photovoltaic performance than that of a device without C-CNTs. The device with C-CNTs shows open-circuit voltage(Voc)of 0.454 V, a short circuit current density(Jsc)of 12.792 mA/cm2, fill factor(FF)of 0.361 and power conversion efficiency of 2.098 %. Here, we proposed that SWCNTs and MWCNTs provide efficient percolation paths for both electron and hole transportation to opposite electrodes and leading to the suppression of charge carrier recombination, thereby increasing the photovoltaic device performance.

Keywords: Carbon nanotube; solar cells; poly-3-octyl-thiophene; ultrasonic nebulizer (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1142/S0218625X15500729

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